/*
 * Copyright (c) 2024 -present FengJinjian ( 751965763@qq.com )

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package edu.vital.energy.longevity.ch09.config.listener;

import jakarta.servlet.http.HttpSessionAttributeListener;
import jakarta.servlet.http.HttpSessionBindingEvent;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
public class SessionCounterListener implements HttpSessionAttributeListener {
    int counter;
    @Override
    public void attributeAdded(HttpSessionBindingEvent event) {
     }

    @Override
    public void attributeRemoved(HttpSessionBindingEvent event) {
     }

    @Override
    public void attributeReplaced(HttpSessionBindingEvent event) {

    }
    public void printCurrentUser(Map activeUsers){
        // 判断是否为空,否则输出其长度

    }


}
